Wood woekhtg machine



( No'Modell) 3 Sheets- 81166; l

.A. D. LINN.

, WOOD WORKING MACHINE.

3- Patented Mar.15,1 837.

(No Model.) 3 Sheets-Sheet 2.

A. D. LINN.

W001)v WORKING MACHINE.

No. 359,453, Patented Mar. 15, 1887.

A. D. LINN.

WOOD WORKING MAGHINE.

Patented'M-ar. 15, 1887.

J.- 1, W ill 3 Sheets-Sheet '3.

llllll I 'TllNiino drnrns PATENT thrice,

reijrgn D. LINN, or RAGINE', WISCONSIN, ASSIGNOR ro rrnn RAOINE HARD WARE lllANUFAOTUR-ING COMPANY, or SAME rmon, AND TI-IoNAs KANE, OF CHICAGO, ILLINOIS.

WOOD WCRKlNG MACHINE.

:BZPECIFICA'IION forming part! Letters Patent No. 359,453, dated March 15,1887.

Application filed April 20, IEEG.

To on whom it may concern;

Be it known that I, ALLEN D. LINN, of Ra cine, in the county of Racine and State of Wisconsin, have invented certain Improve merit-sin Woodorking Machines, of which the "following is a specification.

This invention relates to a machine especielly adapted for shaping and finishing wooden slats to be used in the bucks and seats of ioschool furniture, settees, and other furniture. ifhesiats which it is the design. of this ninehine to complete are used in connection with supporting arms or frames having cars which enter the slats and are secured therein by if, transverse pins.

The machine is designed to'pcrform the several operations-of rounding-the ends of the slets, of forming score or depression in their "under sidc, of forming a mortise or recess to receive the ear, end of boring holes to receive the fastening-pins or dowels. i

To this end it consists in the peculiar construction and organization of parts hereinafter llescribed and claimed. V

*Iuthc accompanying drawings, Figure l. is a. perspeotivevicw showing one of the slats upon which my machine is designed to operate, Fig. Zis at perspective view of the same when completed. liig. Zlreprcsentsntop plan view of my nntchine. Fig. 4 is an end elevation of the same. l ig. 5 is u vertical crosssection on the line :1: :c. I Fig. (i is a vertical crosssectiou on the line 3 3,.

A ir-presenis the rigid main frame, which 3 may he of my suitable-form and construction ndnpt cd to sustain the various parts hereinni'ter described. 0n suilnblehorizoutal guides,

B, at the top of c frame l mount a sliding eerriage, C, a nod to hold and carry the 41 sluts, in a in mini position while the various on ing-l-oolsnrrot/innthereon. At eaclrend this carriage Jar. overhanging arm, a, to bear on of the s tin, and an underlying clamp, I), which rise." bcnent h the slut tohcld the same in ugposition. amp is connected by a screen with n horn -n by which it isectunted. The slot heir need, es shown in Figs.

4, 5, and i}, one. scorned. by the clamps, is held firmly in place on the carriage, so thutit may.

Serial No. 199,497. (No model.)

bcmoved horizontally across the top of the machine in a direction transvcrseto its own length, its ends projecting beyond thelclumping devices in position to be operated upon by the various devices hereinafter described. For

the purpose of moving the carriage to and fro, I

I mount on the top of the frame a horizontal shaft, D, provided with a hand-clamp and with two pinions, E, which engage racks on the 'under side of the carriage.

At each side of the machine I lnount on ahorizontal shaft or arbor a vertically-revolving cutter-howl, F, having peripheral knives of a form adapted to cut the score or groove .1; in the under side of the slat as the latter is carried over the head by the movement of the carriage.

For the purpose of rounding the ends of the slats, shown at y, Fig. 2, I mount at each end of the machine two horizontally-revolving cutter-heads or shupers, G and (l, having their edges and knives of concave form. The heads G and G are separated horizontally to a considerable extent, and are in such position that the carriage is moved to and fro it will be presented to the two heads snccessivcly, each head acting to cut half-way across I the end of the slut from the outer edge in ward; lly thus using two heads, enchanting inward toward the middle of the slut, I avoid the chippiln, or splintcring of the edge of the 30 slat which would occur were the slat carried entirely past cit-her head. I

It lSOllVlOllS that the cutters of the heads G G may be given any form or curvature desired, according to the shape demanded for the end of the slat.

For the purpose of forming the morlises on the underside of the slat, I mount in cachend ol' the frame it vertical spindle, ll, provided with a boringlool, 1. Each spindle isfree to slide vertically to a limited extent, and issupported at its lower-cud on an eccentric, J, scvcured to a horizontal roclrsliaft, K, which is mounted on'thc main frame and provided at one end \vithnivcighted foot-lever, L, as show u inFigs. 4 and U. Thespindlcstands normally in a lowered position, with the point of the boring-tool below the path of the slut, so that willbe observed that the boring toolsreccive,

first, a rotary motion; second, a lateral motion, and, third, 2. vertical motion at the will of the operator. Owing to these three movements, they act when the slat is brought thereover to form-the elongated opening or mortise in its under side.

For the purpose of forming the pin-holes w I in the slats from their outer edges inward to the mortise,'I provide the top of the machine at each end with two horizontal spindles, R R, separated a considerable distance from each other, and provided, respectively, with boringtoo'ls S S, projecting inward and arranged directly opposite each other. These tools are in such positionthat they will alternately enter the slot from opposite edges as the slats are movedlo and fro past the shaping-heads G G.

In order to impart motion to the various mechanisms, I secure the shaping-heads G G and the boring-spindles H to vertical shafts mounted in the frame,and provide them with pulleys to receive driving-belts. The horizontal boring-spindles Rand the horizontal shafts for the cutter-heads F and the shafts P are also.

provided withpulleys. Driving-belts may be applied'to these various pulleys either in the manner represented in the drawings orin any other appropriate manner, this arrangement of the belting, which is susceptible of many modifications, falling within the province of the skilled mechanic.

In order to adapt the machine for operating on slats of different lengths, I propose to mount the three boring-spindles, the cutter-head F, and the two shapinghcads at one end of the machine in a secondary frame, T, arrangedto slide horizontally in the main frame. This sliding frame I connect with hand-screws U, or equivalent devices, by whichit may be adjusted and fixed in position.

In order to permit the rising motion of the mortising-tool, and thus regulate the depth of the mortise, I propose to provide the eccentric J, by which the spindle is lifted, with a stopscrew in its end, as plainly shown in Fig. 0.

Having thus described my invention, what I claim is- 1. In a machine for finishing furniture-slats, the combination of two widely-separated shaping;lieads to act on one end of the slat, andan intermediate carriage movable from one head toward the other, as described and shown, whereby each shaping-head may be caused to act partly across the end of the slat from its enter the edge of the slat as it is advanced by,

the carriage, and a shaping-head revolving about a vertical axis in position to act against the outer end of the slat as the latter is carried past it by the carriage.

3. In a machine for finishing furnitureslats, the combination of two opposing boring-tools, S and S, two shaper-heads, G G, arranged adjacent to the respective boring-tools and in the described relation thereto, to act upon the ends of the slats, and an intermediate reciprocating carriage,'whereby the slats may be presented to the respective boring-to01s and shapers successively. I

4. In a machine for finishing, furniture-slats, the combination, substantially as described and shown, of two opposing boring-tools, an intermediate reciprocating carriage for presenting the slats to the respective tools in succession, the two shaper-heads arranged adjacent to the boring-tools and in position to act upon the ends of the advancing slats, and the intermediate mortising-tool I, acting in a direction at right angles to the boringtooi, whereby the machine is adapted to finish the end of the slat, to mortise its under side, and form a hole thcrethrough. v

5. In a machine for finishing i'nrnitnreslats, the combination of two opposing boring-tools, an intermediate reciprocating carriage, two shaping-heads arranged adjacent to the boring-tools in position to act upon the ends of the slats, an intermediate scoring or groov-.

ing-head, F, to act on the under side of the slats, and the mortising-tool I, arranged between and in line with the boring-tools' 6. In a machine for finishing furniture-slats, the combination, substantially as described and shown, of the reciprocating carriage to support the slats, the four shaper-heads G G, arranged in the position described and shown, to act on the ends of the. slats, the two pairs of opposing boring-tools, and the two mortising-tools located between the boring-tools.

7. In combination with the rotary boringspindle H, the adjustable eccentric J, and its operating-lever for moving the spindle endwisc, the movable bearing .for the upper end of the spindle, and the eccentric 0, connected therewith.

In testimony whereofI hereunto set my hand in the presence of two attesting witnesses.

ALLEN I). LINN.

Witnesses:

FRANK CLYDE KELLER, Jon: I BICKEL. 

